Valve



E. EICKMAN VALVE. APPLICATION FILED SEPT. 2, 1919.

1,375,497. Patepted Apr.19,1921.

provide a" valve of simple and substantial erence being mg drawing. 10

larly to improved relief valves used in convireo s WORKS, OF DAYTON,

TO BUCKEYE mon AND BRASS OHIO, A CORPORATION OF OHIO.

v VALVE.

To all whom it may concern:

Be it known that I, ELMER EICKMAN, a citizen of the United States, residing at ayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in .Valves, of

which the following is a specification, refhad therein to the accompany- This invention relates to valves, particunection with liquid pressure systems, such as domestic water systems and sprinkler systems installed in buildings for the prevention of fires, and other similar uses wherein water or other liquids are maintained automatically within minimum and maximum pressures. a 5 v v Valves of this character are Usuallyprovided with means for flushing to prevent or overcome sticking of the valve parts and thereby prevent proper functioning of the valve in response to the relative pressures of the liquid. In this connection it is a comvariable extent will result and thus cause more or less trouble with the system.

It .isan object of the present invention to overcomethis common defect in relief valves and to provide a valve in which leakage willnot result either at the time of flushing the valve or between the flushing operations. It is a further object of the invention to construction which in all respects will be dependableand eifective for its intended uses.

An'object of the invention is to provide a valve of the character stated in which the operable parts are well guarded against tampering. This has particular reference to the means for flushing the valve and is an important safeguard intended to prevent accidental or intentional setting or locking of the valve in open position and thus render the operation of the pressure system inefiective.

In the accompanying drawings, V

Figure 1 is a side elevation showing the compact form and general design of my improved valve;

Fig. 2 is a longitudinal sectional view taken substantially through the center of the the end being threaded spring 12 is 13 of the main valve housing;

Specification of Letters Patent. Patented Apr. 19, 1921. Application filed September 2, 1919; Serial No. 320,994. V

valve and inters let ports; Fig. 3' is a detail including the adjusting nuts assembled thereon;

Fig. 4 is a detail view of the valve seat housing and valve seat disassembled; and

*ig. 5 is a detail ctin'g both the inletand outinlet and outlet ports of the valve. The end provided with'an aperture 6 which serves as a bearing for the valve stem 7, a portion of as at 8 to receive the fiusher cap 9 which is The valve stem 7 has-an enlarged threaded portion 7 upon which an adjusting nut 10 and a look I disposed about the valve stem mounted thereon andfadjustably connected to the valve stem.

mon fault of valves of this character to have leakage at the flusher orvalve stem so that constant dripping of the pressure liquid in nut 11 are mounted.- A coiled view ofthe valve stem pressure spring and pressure viewin longitudinal sec-f tion of the valve flusher cap showing its re- .of the hou'sing l, opposite the inlet port, is i between the adjusting nut 10 and a shoulder thus by adjusting the position of the nut the spring maybe compressed to: develop the desired amount ofstem, the lock nut being adjusted accordingl to hold the adjusting nut in place.

The inner endle of the valve stem extends substantially beyond the threaded portion 7 and isadapted to engage freely a depressed portion 15 'ofa detached valve head which cooperates with with a circular portion 17 adapted to fit closely within a depressed portion 18,- inwardly adjacent the valve seat 16 in the part 3, and with a cone-shaped portion 19 and a plurality of longitudinally extending vanes or flanges which extend into the aperture 4 valve head in proper operative relation to the valve seat and inlet port.

The inner end of the aperture 4 is slightly beveled or counter-bored to coiiperate with the tapered or cone-shaped portion 19 to the-valve 16 of the part 3 to-open-and close the inlet port; the V detached valve head being further provided and cooperate therewith to retain the V pressure thereby on the valve more readily adapt the valve head to close the inlet port, an annular groove or depression being formed in the inner face of the portion 17 to receive a washer or packing ofsuitable material to form a non-lealrable closure for the inlet port when the pressure Thus by rotating the cap 9 by means of the wings or finger holds 23 the valve stem may 1 12 to flush the valve,

j therethrough as soon as be raised againstthe pressure of the spring 7 the valve stem and valve head being free atall times to move upwardly under pressure of the liquid independently of the flusher cap.

Fromthe foregoing detailed description and the accompanying drawings the construction and operation of my improved valve will be readily understood. It will be seen that thevalve may be regulated to release automatically at any desired pressure of the liquid by adjusting the spring 12 and that the spring will act immediately. to close the valve and stop the discharge of liquid the pressure of the liquid is reduced by the discharge thereof through the valve to less than the pressure of the spring, the valve thus serving as an automatic control' of the maximum pressure of the liquid to whichthe system regulated. j In liquid pressure systems of this character it is the common practice to provide 1 7 means for automatically restoring a mean or parts.

maximum pressure of the liquid as soon'as the pressure falls to a minimum point. This is usually accomplished by means of a pump or other suitable apparatus which is automatically 'set in operation when thepressure of the liquid falls to the minimum. Thus with the relief valve to establish the'maximum pressure and the means for restoring the pressure when it falls to the minimum the required range of pressures for continuous operation is obtained. 'Also it will be seen, that the valve may be flushed at will to release or prevent sticking of the operable Having thus fully described myinvention,

flange or washer 21, which ing normally to hold what I claim as new and desire to secure by Letters Patent, is

1. In a valve, the combination, with a valve housing having "an inlet and an outlet port respectively,

ated valve stem acting normally to hold the valve head in closed position relative to said and projecting exteriorly of the housport,

and a valve actuating cap completely ing,

" inclosing the projecting end of the stem and forming a fluid-tight joint withtheahousmg. r V f l 2. In a valve, the combination, with a valve housing having an inlet and an .out-

let port, a valve'head cotiperating withv the inlet port, a spring actuated valve stem act-' ing normally to. holdthe valve head in closed position relative to said port and'pr'ojecb the housing, a cap inclosing exteriorly of ing the projecting end of the stem and form ing a fluid-tight joint with the housing, and

means responsive to rotary. movement of the cap to effect longitudinal movement of the stem.

3.*In a valve, the combinatio'n with a valve housing having an inlet and an outlet port, a valve head cooperating with the inlet "port, a spring actuated valve stem actthe valve head inclosed said port, and a closed fluid-tight rotative flusher capl threaded to the valve housing normally disengaged from adapted to co'ciperatewith the valve stem, whereby the valve may be flushed manually position relative to 4:. In a valve," the combination, with a valve housinghavlng an lnlet and an outlet port, a detached valve head coiiperating with theinlet port, a spring actuated valve stem engaged at one end with and acting normally relative to said port, and having an intermediate threaded portion, an adjusting nut and a'lock nut fitted on the threaded portion of the-valve stem, spring be adjusted and maintained in adjusted position and a fiusher cap adapted to actuate the a valve stem in one direction to flush the valve, and an adjusting cap engaging the opposite end of the stem and adjustably fitted on the housing.

In testimony whereof, I aflix my signature.

ELMER H. EIGKMAN.

whereby the pressure of the cotiperating with the valve stem may to hold the valve head in closed position 

